Implement preference and policy based content settings providers.

chrome/browser/content_settings/pref_content_settings_provider_unittest.cc

Index: chrome/browser/content_settings/pref_content_settings_provider_unittest.cc
diff --git a/chrome/browser/content_settings/pref_content_settings_provider_unittest.cc b/chrome/browser/content_settings/pref_content_settings_provider_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f4289f3b5ee76860025a9a356582cf2efa2af5b8
--- /dev/null
+++ b/chrome/browser/content_settings/pref_content_settings_provider_unittest.cc
@@ -0,0 +1,124 @@
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/content_settings/pref_content_settings_provider.h"
+
+#include "chrome/browser/content_settings/host_content_settings_map_unittest.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/common/url_constants.h"
+#include "chrome/test/testing_pref_service.h"
+#include "chrome/test/testing_profile.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+
+namespace {
+
+class PrefContentSettingsProviderTest : public testing::Test {
+ public:
+  PrefContentSettingsProviderTest()
+      : ui_thread_(BrowserThread::UI, &message_loop_) {
+  }
+
+ protected:
+  MessageLoop message_loop_;
+  BrowserThread ui_thread_;
+};
+
+TEST_F(PrefContentSettingsProviderTest, DefaultValues) {
+  TestingProfile profile;
+  PrefContentSettingsProvider provider(&profile);
+
+  ASSERT_TRUE(
+      provider.CanProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+  ASSERT_FALSE(
+      provider.DefaultSettingIsManaged(CONTENT_SETTINGS_TYPE_COOKIES));
+
+  // Check setting defaults.
+  EXPECT_EQ(CONTENT_SETTING_ALLOW,
+            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+  provider.UpdateDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES,
+                                CONTENT_SETTING_BLOCK);
+  EXPECT_EQ(CONTENT_SETTING_BLOCK,
+            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+  provider.ResetToDefaults();
+  EXPECT_EQ(CONTENT_SETTING_ALLOW,
+            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+}
+
+TEST_F(PrefContentSettingsProviderTest, Observer) {
+  TestingProfile profile;
+  PrefContentSettingsProvider provider(&profile);
+  StubSettingsObserver observer;
+
+  provider.UpdateDefaultSetting(
+      CONTENT_SETTINGS_TYPE_IMAGES, CONTENT_SETTING_BLOCK);
+  EXPECT_EQ(profile.GetHostContentSettingsMap(), observer.last_notifier);
+  EXPECT_TRUE(observer.last_update_all);
+  EXPECT_FALSE(observer.last_update_all_types);
+  EXPECT_EQ(1, observer.counter);
+}
+
+TEST_F(PrefContentSettingsProviderTest, ObserveDefaultPref) {
+  TestingProfile profile;
+  PrefContentSettingsProvider provider(&profile);
+
+  PrefService* prefs = profile.GetPrefs();
+
+  // Make a copy of the default pref value so we can reset it later.
+  scoped_ptr<Value> default_value(prefs->FindPreference(
+      prefs::kDefaultContentSettings)->GetValue()->DeepCopy());
+
+  provider.UpdateDefaultSetting(
+      CONTENT_SETTINGS_TYPE_COOKIES, CONTENT_SETTING_BLOCK);
+  EXPECT_EQ(CONTENT_SETTING_BLOCK,
+            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+
+  // Make a copy of the pref's new value so we can reset it later.
+  scoped_ptr<Value> new_value(prefs->FindPreference(
+      prefs::kDefaultContentSettings)->GetValue()->DeepCopy());
+
+  // Clearing the backing pref should also clear the internal cache.
+  prefs->Set(prefs::kDefaultContentSettings, *default_value);
+  EXPECT_EQ(CONTENT_SETTING_ALLOW,
+            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+
+  // Reseting the pref to its previous value should update the cache.
+  prefs->Set(prefs::kDefaultContentSettings, *new_value);
+  EXPECT_EQ(CONTENT_SETTING_BLOCK,
+            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+}
+
+TEST_F(PrefContentSettingsProviderTest, OffTheRecord) {
+  TestingProfile profile;
+  PrefContentSettingsProvider provider(&profile);
+
+  profile.set_off_the_record(true);
+  PrefContentSettingsProvider otr_provider(&profile);
+  profile.set_off_the_record(false);
+
+  EXPECT_EQ(CONTENT_SETTING_ALLOW,
+            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+  EXPECT_EQ(CONTENT_SETTING_ALLOW,
+            otr_provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+
+  // Changing content settings on the main provider should also affect the
+  // off-the-record map.
+  provider.UpdateDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES,
+                                CONTENT_SETTING_BLOCK);
+  EXPECT_EQ(CONTENT_SETTING_BLOCK,
+            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+  EXPECT_EQ(CONTENT_SETTING_BLOCK,
+            otr_provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+
+  // Changing content settings on the off-the-record provider should be ignored.
+  otr_provider.UpdateDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES,
+                                   CONTENT_SETTING_ALLOW);
+  EXPECT_EQ(CONTENT_SETTING_BLOCK,
+            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+  EXPECT_EQ(CONTENT_SETTING_BLOCK,
+            otr_provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
+}
+
+}  // namespace